Figure 3
From: Sugar responsiveness could determine foraging patterns in yellowjackets
Type of load of foragers of Vespula germanica and Vespula vulgaris captured with a hand-held battery-operated suction device when entering nests. Captured individuals were classified into “Empty”, “Carbohydrates” and “Water”. Significant differences between species were found in those carrying sugary liquids and those empty. Bars indicate mean values, error bars indicate standard error (*p < 0.05, ns = p > 0.05).
